Those CST tires are awesome. CST = Cheng Shin Tire, which is a MONSTER tire manufacturer.
They're half the price of the Vittoria's / DiaCompe Gran Compe SS's.
I've got those same white 700x23mm CST tires on my bike (see avatar), and I'm 300+lbs riding around L.A.'s none too immaculately maintained roads. They've held up well so far, and I'd definitely order them again.
(Obviously, you can spend more money and get a better tire. Will they be twice as good for twice as much money? Doubtful.)